This is the David Smart RA8875 Library with mods for working with FRDM-K64F
TextDisplay.cpp
- Committer:
- lamell
- Date:
- 2020-05-03
- Revision:
- 201:1119f1e9f4e4
- Parent:
- 182:8832d03a2a29
File content as of revision 201:1119f1e9f4e4:
// mbed TextDisplay Display Library Base Class // Copyright © 2007-2009 sford // Released under the MIT License: http://mbed.org/license/mit #include "TextDisplay.h" //#define DEBUG "Text" // ... // INFO("Stuff to show %d", var); // new-line is automatically appended // #if (defined(DEBUG) && !defined(TARGET_LPC11U24)) #define INFO(x, ...) std::printf("[INF %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__); #define WARN(x, ...) std::printf("[WRN %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__); #define ERR(x, ...) std::printf("[ERR %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__); #else #define INFO(x, ...) #define WARN(x, ...) #define ERR(x, ...) #endif TextDisplay::TextDisplay(const char *name) : Stream(name) { _row = 0; _column = 0; _foreground = 0; _background = 0; if (name == NULL) { _path = NULL; } else { int len = strlen(name) + 2; _path = new char[len]; snprintf(_path, len, "/%s", name); } } TextDisplay::~TextDisplay() { delete [] _path; } int TextDisplay::_putc(int value) { INFO("_putc(%d)", value); if(value == '\n') { _column = 0; _row++; if(_row >= rows()) { _row = 0; } } else { character(_column, _row, value); _column++; if(_column >= columns()) { _column = 0; _row++; if(_row >= rows()) { _row = 0; } } } return value; } // crude cls implementation, should generally be overwritten in derived class RetCode_t TextDisplay::cls(uint16_t layers) { INFO("cls()"); locate(0, 0); for(int i=0; i<columns()*rows(); i++) { putc(' '); } return noerror; } RetCode_t TextDisplay::locate(textloc_t column, textloc_t row) { INFO("locate(%d,%d)", column, row); _column = column; _row = row; return noerror; } int TextDisplay::_getc() { return -1; } RetCode_t TextDisplay::foreground(uint16_t color) { //INFO("foreground(%4X)", color); _foreground = color; return noerror; } RetCode_t TextDisplay::background(uint16_t color) { //INFO("background(%4X)", color); _background = color; return noerror; } bool TextDisplay::claim(FILE *stream) { if ( _path == NULL) { fprintf(stderr, "claim requires a name to be given in the instantiator of the TextDisplay instance!\r\n"); return false; } if (freopen(_path, "w", stream) == NULL) { return false; // Failed, should not happen } // make sure we use line buffering setvbuf(stdout, NULL, _IOLBF, columns()); return true; }